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earning.com/ibiscms/mod/ibis/view.php?id-2262125 State Community College-CHEM 1

ID: 990253 • Letter: E

Question

earning.com/ibiscms/mod/ibis/view.php?id-2262125 State Community College-CHEM 1 1 1 0-Spring16-ESTES Activities and Due Dates 4/29/2016 11:15 AM 088.1/100 04/28/2016 11:11 PM Grad Print Caloulator Periodic Tuble Question 25 of 25 Map uge attached to the er reads 2210 psi ( 1 atm . 14.7 psi) at 23.8 what mass of helium is ontained n the cylinder? A gas cylinder that contains helium has an internal volume of 2.24 L. A pressure Number Mass = O Previous Ove Up & View Sciden O Check Answer @Nex1 , about us careers partners privacy policy terms of use Inc. -37 Cleveland State Co.. "Veaptal Nantes TOSHIBA

Explanation / Answer

Applying Universal gas law

PV=nRT

P = 2210/14.7 = 150.34 atm

R = 0.0821

T = 23.8+273 = 296.8

=> n = PV/RT = (150.34*2.24)/(0.0821*296.8) = 13.82 moles

=> weight = no.of moles * molecuar weight = 13.82 * 4 = 55.281 gms